Means used for casting safe-knobs.



W. T. BAUSMITH. MEANS USED FOR CASTING SAFE KNOBS. APYLIGATION HLBD AUG. 5, 1907.

915,820, 'aL-'anted Mar. 23, 1909.

UNITED sTATEs PATENT oEEIoE. WILLIAM T.- BAUSMITH, OF BELLEV UE,'KENTIICKY, ASSIGNOR .TO VICTOR SAFE d: LOCK COMPANY, OF CINCINNATI,OHIO, Av CORPORATION OF OHIO.

MEANS UsEn Fon CASTING sAFE-xNoBs.

Specication of Letters Patent. Application med Augen 5, 1907. serial Nb; as7,152.

Ifatented March 23, 1909.

To all whom 'it may concern.'

Beit known that I, WILLIAM T. BAUSMITH, a-,citizen of the United States, and residing at f Bgllevue, Campbell county, State of Ken- '5 .tucky, have invented certain new and useful Means Used for Casting Safe-Knobs; and l do declare the following to be a clear, full, and exact description of the invention, attention being called to the accompanyin drawing, with the reference characters mar ed thereon, which forms also a part of this specification. f Safes with combination-locks are provided-with a knob on the outside of their Adoors whereby the lock-spindle is manipulated to set the l0ck-tumblers- A dial is provided on this knob for the purpose of gaging and 'controlling this manipulation properly. These two members arelnow made in various 29 walv, usually built upof separate pieces.

eobject of my invention is to produce both in one piece and in form of an integral casting.

' Another object is to have this casting hollow to avoid the waste of metal, since a solid knob is unnecessary and of no advantage,

' An additional object is to impart the graduation marks on the dial, and the figures pertaining thereto, in the act of casting, so that,

30 when such a combined knob and dial leaves the mold, it is practically complete and the additional rocedure of providing these marks and gures, which is usually hy cutting and engraving, isdone away with.

My invention consists of certain means used in preparing and forming the particular o mold used to produce such a knob in its specie shape as outlined above.

Inthe following specification and particu- 40 larly pointed' out in the claim at the end thereof, Will be found a full description of my invention, together with its manner of manufacture and means used ingonnection there.- with, also their parts and construction', which 4 5 latter is also illustrated in` tne accompanyingn drawing, in 'whichz- .Figure 1 is an axial section of the castingT i comprising a safe-knob and its dial produced by the means involved in my invention. 5U Fig 2,is a side-elevationof the same. Fig. 3, is a fronbview of the knob and its dial. '/Fig. 4, in vertical section shows portion of a coni- 'pleted mold for casting this article in multiple. Fig. 5,in a similar view shows manner of preparing` tl1e.drn,;,r .and the cope of this ving,r the mold-part prepared in it.

r4Inu tiple.l

mold. Fig. 6, in a vertical, central section shows a device, a separable forni', used for preparing an intermediate part of the mold. Fig. 7, illustrates use of this formv and Inanipv ulation of its parts for the purpose of ieleas- 4jig. 8, shows in section this mold-part as it appears' before placed in position. Fig. 9, in a view similar to Fig. 4;@shows preparation of the mold in a modifi/d manner. Fig. 10, in a View similar to Fig. 6sl1ows a modified con-v struction of the device shown in this latter figure the device here shown being arranged to roduce the intermediate mold-part in Fig. 9. Fig. 12, shows part of a top-view of the pattern which impresses the graduations and their corresponding indicating numbers in the mold. l' 75 A, is the hollow safe-knob and B, its dial, both connected by a `hollow shank C. The shank is continued on the under-side of the dial, Where it forms a hub c, which serves for connectionto the spindle of the -safedock All these parts are contained in one integral hollow casting. A portion of the dial around its edge is inclined toward this latter, formingan annular zone b, which contains the graduations and the numerals connected with them. g5

This knobvis cast in the mold illustrated in Fig. 4, a number of them being preferably cast at a time (see Fig. 11). This mold consists of the lower part or drag D, contained in the drag-flask d, and of the upper )art or e0 cope E, contained in the flask e. 1ere is also an intermediate mold-part which I call mold-core F, and in the center thereof and with a space between the two there is an inner orc G, which in conjunction with the other parts of the mold, forms the hollow knob and its hollow shank. Y

Fig. 5, illustrates the usual method employed in preparation of drag and cope of the .mol-d and the patterns used for this purpose.

A parting is made in the mold where the safeknob attains its largest diameter, a match plate J being used which is as lon andas wide as the mold and is interposed etween copeE and drag D, it restinlg on the edges of 105 drag flask d. The pattern "for that part .of the knob which is above' this parting is indicated. by H, and is secured to the u per s'ide of match-plate J. On the other s'i e ,of this match-plate there is a pattern K, which i 10 Fig. l 1, at reduced scale shows an 70 'under-side View lof the vpattern shown 1n Correction in Letters Patent No. 915,820..

i Tiii'reby Certified that in Letters Patent No. 915,820, granted March 23, 1909,

produces the spaces lc, (see Fig. 4), in the drag-mold D, reserved to receive the moldcore F. These patterns H, and Ii, are axially alined. On the under-side of pattern K, is formed a pattern L, shaped to impress in the mold the forme tion and 'shape required for the under-side of the dial, this particular part of the mold being contained in the drag. Froxn the center of this pattern L, there projects a pattern lvl, which shapes that part l o1 the .mold which produces the lower part of.

the shank or hub c, of the knob, the same being also contained in the drag. There is nally an extension g, on'this pattern which molds a print for core/G. i

Mold-core F, is produced in a form consistling, of a circular side N, which has a removthe east-ing the graduations and numbers on the dial as shown in liig. 3. This form contains further the pattern P, for producing the mold for the lower partei the knob, it

'beingJ provided with a pin 2), whereby it is seated in asocket formed on the upper side of pattern G, see Fi fs. G and ll). Both these patterns? and O, W en assembled, constitute )etween them also the pattern for shank (l, each forming a part of the same. For producing this mold-,core l", the described parts of the form are assembled as shown in Fig. after which, the moldingdnixture (sand) having been. filled in, they are reversed pattern P, having first been liftedl out and a board Q, shown in Fig. 7 having been Y )laced on top of member N, as shown in dotted lines. The mold-core is cleared as shown in Fig. 7, bottom f/L, of the forni being Iirst removed, next its side N, and finally pattern is lifted oil'. rl`his leaves the mold-core resting;` free on board Q, as shown, after which, when dried, it is complete, appearing as shown in Fig. 8,'and is ready to be set into recesses k, ol' the drag-mold.

lt will now be seen that the mold for the upper part ul' the knob is contained in the cope. 'llie mold for the lower part of the knob and its sli'a'nk is contained in the open [SEAL] part f, of mold-core F, which contains also on its lower side the impression for the upper art of the dial. The im ressions for the ower part, or under-side 0 the dial, for hub c, and for core-print g, are contained in the drag. Bottom n, and side N, of the form in which the mold core is shaded do Anot neces sarily have-to be separab e, but are so, to facilitate dismantling so that the inold core may be obtained without injury. Pattern O, might form a part of bottom fn, by preference however, it is arranged separate as shown, being provided with a pin s, which is iitted to an opening in bottom n to fix its position.' Thus in dismantling the form, pattern O, may be left resting on top of moldcore F, until the time eomes for closing the mold, thereby protecting the delicate impressions of the graduation-marks and figures thereon while the same is swabbec'l and cleaned. These mold-cores may also be lformed in multiple as shown in Fig. 1G, bottom n, of the form being of a size sufficient to receive a number of patterns O, each ro- Vided with a pattern Side N, is in orm of a frame of sufficient size to surroun'd'all'V dial, both integrally combined by a 'holiowshank, said outfit consisting of a drag and a co ,e-liask, a match-plate containing on one si( e a pattern for the upper pa'rt of the knob and on the other side a pattern 'to reserve a recess in the drag-mold and to impress therein also the shape of the under side of the dial, and a form to shape a mold-core {itt-ed t0 the recess in the drag-mold, the same containing.

also patterns to impart tosaid mold-core the shape of the front-side ol the dial and of the lower part of the knoband of the shank be.

tween the two.

In testimony whereof I hereunto affix my signature in the presence of two witnesses. XVILLIAM T. BAUSMITH.

vVVit-nessos:

C. SPENGEL, T. Ln BEAN.

i upon the application of William T. Bausmith, of Bellevue, Kentucky, for an improvei ment in Means Used for Casting Safe-Knobs, an error appears in the printed l specification requiring correction, as follows: In line 95, page 1, the- Word ore should read core; and that the said lll'etterxi Patent should be read with this correction therein that the same may conform to the record of the oase in the Patent Oice.

signed and sealed uns 13th day of Apitn. D., 1909.

o. o.' BILLINGS,

Acting Commissioner of Patents.

Correction in Letters Patent No. 915,820..

i Tiii'reby Certified that in Letters Patent No. 915,820, granted March 23, 1909,

produces the spaces lc, (see Fig. 4), in the drag-mold D, reserved to receive the moldcore F. These patterns H, and Ii, are axially alined. On the under-side of pattern K, is formed a pattern L, shaped to impress in the mold the forme tion and 'shape required for the under-side of the dial, this particular part of the mold being contained in the drag. Froxn the center of this pattern L, there projects a pattern lvl, which shapes that part l o1 the .mold which produces the lower part of.

the shank or hub c, of the knob, the same being also contained in the drag. There is nally an extension g, on'this pattern which molds a print for core/G. i

Mold-core F, is produced in a form consistling, of a circular side N, which has a removthe east-ing the graduations and numbers on the dial as shown in liig. 3. This form contains further the pattern P, for producing the mold for the lower partei the knob, it

'beingJ provided with a pin 2), whereby it is seated in asocket formed on the upper side of pattern G, see Fi fs. G and ll). Both these patterns? and O, W en assembled, constitute )etween them also the pattern for shank (l, each forming a part of the same. For producing this mold-,core l", the described parts of the form are assembled as shown in Fig. after which, the moldingdnixture (sand) having been. filled in, they are reversed pattern P, having first been liftedl out and a board Q, shown in Fig. 7 having been Y )laced on top of member N, as shown in dotted lines. The mold-core is cleared as shown in Fig. 7, bottom f/L, of the forni being Iirst removed, next its side N, and finally pattern is lifted oil'. rl`his leaves the mold-core resting;` free on board Q, as shown, after which, when dried, it is complete, appearing as shown in Fig. 8,'and is ready to be set into recesses k, ol' the drag-mold.

lt will now be seen that the mold for the upper part ul' the knob is contained in the cope. 'llie mold for the lower part of the knob and its sli'a'nk is contained in the open [SEAL] part f, of mold-core F, which contains also on its lower side the impression for the upper art of the dial. The im ressions for the ower part, or under-side 0 the dial, for hub c, and for core-print g, are contained in the drag. Bottom n, and side N, of the form in which the mold core is shaded do Anot neces sarily have-to be separab e, but are so, to facilitate dismantling so that the inold core may be obtained without injury. Pattern O, might form a part of bottom fn, by preference however, it is arranged separate as shown, being provided with a pin s, which is iitted to an opening in bottom n to fix its position.' Thus in dismantling the form, pattern O, may be left resting on top of moldcore F, until the time eomes for closing the mold, thereby protecting the delicate impressions of the graduation-marks and figures thereon while the same is swabbec'l and cleaned. These mold-cores may also be lformed in multiple as shown in Fig. 1G, bottom n, of the form being of a size sufficient to receive a number of patterns O, each ro- Vided with a pattern Side N, is in orm of a frame of sufficient size to surroun'd'all'V dial, both integrally combined by a 'holiowshank, said outfit consisting of a drag and a co ,e-liask, a match-plate containing on one si( e a pattern for the upper pa'rt of the knob and on the other side a pattern 'to reserve a recess in the drag-mold and to impress therein also the shape of the under side of the dial, and a form to shape a mold-core {itt-ed t0 the recess in the drag-mold, the same containing.

also patterns to impart tosaid mold-core the shape of the front-side ol the dial and of the lower part of the knoband of the shank be.

tween the two.

In testimony whereof I hereunto affix my signature in the presence of two witnesses. XVILLIAM T. BAUSMITH.

vVVit-nessos:

C. SPENGEL, T. Ln BEAN.

i upon the application of William T. Bausmith, of Bellevue, Kentucky, for an improvei ment in Means Used for Casting Safe-Knobs, an error appears in the printed l specification requiring correction, as follows: In line 95, page 1, the- Word ore should read core; and that the said lll'etterxi Patent should be read with this correction therein that the same may conform to the record of the oase in the Patent Oice.

signed and sealed uns 13th day of Apitn. D., 1909.

o. o.' BILLINGS,

Acting Commissioner of Patents.

Correction in Letters Patent No. 915,820.

It ie hereby certified that in Letters Patent No. 015,820, granted March 23, 1909, upon the application of William T. Bausmitrh, of Beilevue, Kentucky, for an improvemont iu Means Used for Casting Safe-Knobs," an error appears in the printed specification requiring correction, as follows; in line 95, page 1r` theword ore should road eo're; and that the saidLetterH Patent should be read with this correction therein that` the same may conform to the reord of the case in the Patent Oiice.

Sigurd :1nd sealed this 13th day of April, A. D., 1909.

wir.) i C. C. BILLINGS,

Acfing Commissione' of Pate-nis. 

